Need information about a couple wood Japanese racquets?

Hi all, I'm brand new to these forums because I'm not having a lot of luck digging up information, and I hoped I could turn to your expertise.

I recently picked up a couple of Japanese racquets that I'm guessing are from the late 50's, were manufactured by now-defunct companies ...and that's all I know. One is a Futabaya Blue Volley and the other is a Kawasaki Streamline. Both look in very good condition and came with what I'm guessing are the original zippered cases. If I can figure out how to post photos of them, I will.

I do remember the #1 on my tennis team in HS used a Futabaya ('76)...I thought it was a neat looking racket, white shaft and clear light wood. Exotic next to the JKA, Maxply, Red Head, Ashe Comps that we saw a lot of.